The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-166-8729, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Am General Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-166-8729 |
| Primary Part Number | 3231980 |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Connection Type | COUPLING FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | RECTANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FE-650 | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| 3231980 PRIMARY | Am General Llc (USA) |
| 3229610 | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 3231980 | 5/9 Secondary reference Kenosha Automotive Plant Sub of American Motors Corp |
| D3OZ-9A624B | 5/9 Secondary reference Ford Motor Company |
| D3OZ-9A624B | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
NSN 4720-01-166-8729 is a Hose Assembly,air Duct, manufactured by Am General Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-166-8729 has 3 manufacturer part numbers on file: FE-650 (Trw Inc Trw Intl Trade Government Sales Dept), 3231980 (Am General Llc), 3229610 (Am General Llc).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-495-1989. Verify interchangeability with system specifications before substitution.
Key specifications for 3231980: Connection Type: COUPLING FIRST END; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; Cross-Sectional Shape Style: RECTANGULAR; Special Features: USED ON CARBURETOR AIR CLEANER,AMC JEEP 1978 SIX CYLINDER. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.